Ink pad for rubber stamps, etc.



Jan. 12 1926. 1,569,337

E. F. ROLLE jxmc PAD FOR RUBBER STAMPS, mo

Filed July 10, 1925 INVENTCR:

EJWWZEZoZZe ATTORNEY Patented Jan. 12, 1926.

UNITED STATES PATENT OFFICE. V

EDWARD F. ROLLE, 0F FOREST HILLS, NEW YORK, ASSIGNOR TO ROLLE RUBBER COM- PANY, INQ, OF NEW YORK, N. Y.

INK PAD FOR RUBBER STAMPS, ETC.

Application filed July 10, 1925.

To all whom it may concern.

Be it known that I, EDWARD F. Home, a citizen of the United States, and a resident of Forest Hills, in the county of Queensand State of New York, have invented certain new and useful Improvements in Ink Pads for Rubber Stamps, lowingis a specification sufficient to enable those skilled in theart to which the invention appertains to utilize the same.

My improvements relate to the ink-impregnated pads used for the purpose of applying ink to the printing surfaces of rubber stamps, and for analogous purposes, my object being the production of a pad of this character formed of absorbent sponge rubber and provided with a cover flap integral with the main pad portion; or, in other words, of a unitary structure of pad and cover as hereinater set forth, and described and claimed specifically,a distinctive and essential feature being the formation of such unitary structure of pad and cover with an intermediate transverse hinge-groove which supplements the articulative connection between pad and cover flap in such manner as to facilitate accessibility to the inking surface of the pad, when desired, by insuring and maintaining the complete retractile position of the cover as related thereto.

In the accompanying drawings I illustrate a practical embodiment of the essential features of my invention in a unitary construction of pad and cover of the character designated, although I do not wish to limit myself to the identical configuration of parts shown by way of exemplification, since changes in form and minor details may be resorted to with like results, and without deviating from the spirit and intent of my invention in this respect.

lVith this understanding Fig. 1, is an isometrical view of my improved ink pad, closed;

Fig. 2, is an isometrical View of the same, with the cover section turned back to give access to the inking surface of the pad; 7

Fig. 3, is a longitudinal section of the pad and cover, closed;

to, of which the fol- Serial No. 42,687.

Fig. 4:, is a transverse section thereof taken upon plane of line 44, Fig. 3.

In themanufacture of my improve-d inking pad a slab of sponge-rubber of suitable size and thickness is moulded in the usual way, except that in this instance a core rod is positioned in the mould to form the transverse hinge-groove g.

After removal from the mould the slab of sponge rubber thus attained is cut open longitudinally and horizontally parallel to the upper flat side thereof as far as the l'iinge-groove g, to form the cover flap 0, for the main portion or body I), of the pad, the upper surfaceb, of which latter constitutes the ink receptacle in that it is impregnated therewith in the usual manner.

This horizontal longitudinal cut of the slab is preferably made in alignment with the upper portion of the hinge-groove g, and the latter is preferably, although not necessary, annular in cross section, as shown more particularly in Fig. 4, of the drawings.

The cutting of the slab as described as far back as the hinge-groove g, to form the cover flap 0, leaves an articular ligature 0, back of said groove g, which constitutes practically the hinge of said cover flap a, as is obvious by reference more particularly to Fig. 2, of the drawings, which shows said flap turned back sufficiently to afford ample and unobstructed access to the stamp-inking surface 7), of the pad.

The rear edges of the slab back of and adjacent to the hinge-groove g, are preferably chamfered or curved to facilitate the clearance of the cover flap a, when turned back, as related to the pad portion 6, of the device.

'VVhat I claim as my invention and desire to secure by Letters Patent, is

1. As an article of manufacture, an ink pad of the character designated, formed of sponge rubber with cover flap and a hinge groove integral therewith, substantially in the manner and for the purpose set forth.

2. An ink pad comprising a slab of rubber sponge formed to provide a pad portion and a cover flap connected by a hinge in an integral structure.

' EDWARD F. ROLLE. 

